HS6, needs 4 bolts... what size are they please?

_________________
Here am I sitting in my tin can far above the Moon
Planet Earth is blue and there's nothing I can do...



“A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.” - Jeremy Clarkson

5/16ths usually

edit--> oh & they`re best off being "studs" not bolts actually

_________________
No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

Ta Matty

_________________
Here am I sitting in my tin can far above the Moon
Planet Earth is blue and there's nothing I can do...



“A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.” - Jeremy Clarkson

I went to Bunnings and bought a length of 5/16 W threaded rod..

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

ah yeah usually 5/16ths UNC in the manifolds i

& 5/16ths UNF for the carby end (for the nuts)

& if you go the "Booka Rod" (threaded rod) like the Doc said,,,then you can just use that & UNC nuts on the ends

_________________
No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

KC Matt

_________________
Stop Licking the Dog...I Don't Care Who Started It

doh!

dropped past, they didnt have any spacers, so stocked up on gaskets, bought carby home and test fitted, turns out there is enough clearance not to warrant the need for one, i may in the future get a bling DrMini special to increase volume, but for the time being i think it will be fine.

On another note, i had a good look at the MS manifold this arvo, actually pretty decent, was already opened up to suit 1 3/4 and i only really touch the inside walls to smooth out the cast imperfections....

Happy chappy, and will test fit maybe over the weekend...

_________________
Here am I sitting in my tin can far above the Moon
Planet Earth is blue and there's nothing I can do...



“A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.” - Jeremy Clarkson

Matt,
Check the ports align with the manifold gasket and stud holes..
I had to TIG weld then mill the flanges of one once, they were 3mm out.
Whoever machined it in UK obviously didn't give a rat's.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Is this on the head end of the manifold? the carby end is perfect, i feel that the ports ends will probably be a bit on the big side, as i recall the intake ports on my head werent that huge... thoughts?

_________________
Here am I sitting in my tin can far above the Moon
Planet Earth is blue and there's nothing I can do...



“A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.” - Jeremy Clarkson

Doc, what is the size of the grub needed to blank off the hole on top of the manifold?

_________________
Here am I sitting in my tin can far above the Moon
Planet Earth is blue and there's nothing I can do...



“A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.” - Jeremy Clarkson

Head side- not carby. The dud one had the 2 ports 3mm > out of pos to the studs.

Grubscrew is 5/8 UNF.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Cheers Doc (as usual),

Still have to get a few more things before i put it on, if it is out by a long shot, what is the best way to over come the issue? closing up the manifold or opening up the head intakes?

_________________
Here am I sitting in my tin can far above the Moon
Planet Earth is blue and there's nothing I can do...



“A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.” - Jeremy Clarkson

You mean the sizing, if they line up OK and there's a diameter difference, open the head out a little to match.
If the ports are out of line, you will need to get GR to TIG weld 2 stud slots then bring it here and I can fix it on the mill.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.